Hybrid Black-Chinned X Anna's Hummingbird. There was quite a fuss when a Black-chinned was reported on the local bird alert, first photo records in Lower mainland. The photos were referred to a Hummingbird expert in California and to David Sibley, both confirmed it was a hybrid, probably with Anna's.

If anyone could help identify...it would be appreciated. The bird had deep purple at the base of the throat, which lead me to think of Black-chinned Hummingbird. However it doesn't appear to range to the coast.
Taken at Richmond Nature Park, BC.